From: tip-bot for Dan Carpenter <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: aryabinin@virtuozzo.com, linux-kernel@vger.kernel.org,
tglx@linutronix.de, dave.hansen@linux.intel.com,
akpm@linux-foundation.org, mingo@kernel.org, hpa@zytor.com,
dan.carpenter@oracle.com, luto@kernel.org
Subject: [tip:x86/cleanups] x86/ldt: Make a size argument unsigned
Date: Sat, 10 Dec 2016 00:12:50 -0800 [thread overview]
Message-ID: <tip-296dc5806de57dc84fce000d60fc201ba40f96e8@git.kernel.org> (raw)
In-Reply-To: <20161208105602.GA11382@elgon.mountain>
Commit-ID: 296dc5806de57dc84fce000d60fc201ba40f96e8
Gitweb: http://git.kernel.org/tip/296dc5806de57dc84fce000d60fc201ba40f96e8
Author: Dan Carpenter <dan.carpenter@oracle.com>
AuthorDate: Thu, 8 Dec 2016 13:56:03 +0300
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sat, 10 Dec 2016 00:24:39 +0100
x86/ldt: Make a size argument unsigned
My static checker complains that we put an upper bound on the "size"
argument but not a lower bound. The checker is not smart enough to know
the possible ranges of "old_mm->context.ldt->size" from
init_new_context_ldt() so it thinks maybe it could be negative.
Let's make it unsigned to silence the warning and future proof the code
a bit.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: kernel-janitors@vger.kernel.org
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20161208105602.GA11382@elgon.mountain
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/ldt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 6707039..e25b668 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -34,7 +34,7 @@ static void flush_ldt(void *current_mm)
}
/* The caller must call finalize_ldt_struct on the result. LDT starts zeroed. */
-static struct ldt_struct *alloc_ldt_struct(int size)
+static struct ldt_struct *alloc_ldt_struct(unsigned int size)
{
struct ldt_struct *new_ldt;
int alloc_size;
prev parent reply other threads:[~2016-12-10 8:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-08 10:56 [patch] x86/ldt: make a size variable unsigned Dan Carpenter
2016-12-08 22:29 ` Andy Lutomirski
2016-12-08 23:08 ` Thomas Gleixner
2016-12-10 8:12 ` tip-bot for Dan Carpenter [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=tip-296dc5806de57dc84fce000d60fc201ba40f96e8@git.kernel.org \
--to=tipbot@zytor.com \
--cc=akpm@linux-foundation.org \
--cc=aryabinin@virtuozzo.com \
--cc=dan.carpenter@oracle.com \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mingo@kernel.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).